"unruh" <un...@invalid.ca> wrote in message news:Ur4ar.15722$iq1.15...@newsfe18.iad...
On 2012-03-20, David J Taylor <david-tay...@blueyonder.co.uk.invalid> wrote:
"unruh" <un...@invalid.ca> wrote in message
news:d13ar.7952$gv1.7...@newsfe12.iad...
[]
It is really really hard to imagine any gps device doing that.

Yes, I agree, and yet what just popped up in my mail box but a reference
to:

  "an inexplicable 1 second slip of 3 GPS based NTP time sources".

I have, of course, asked for more details!

A one second slip I could understand-- eg Gamin 18x reporting over 1
second after the associated second would lead to that. But a computer
advancing at an hour per tick is way beyond that.
Perhaps the 1 second slip tickled a bug in ntp with the LOCL clock--
where the system then saw the GPS as a false ticker, went to LOCAL with
a bad rate, and compounded the rate error by some sort of runaway
process.

You are confusing two events here. Ron had a problem with the PC running fast. This was a separate incident where there was a 1 second slippage. When and if I get more details I will post them here. There is no suggestion that the two are related.

Cheers,
David
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